Apparatus for molding artificial stone



Jan. 17, 1928. 1,656,886

A. GALANTE APPARATUS FOR MOLDING ARTIFICIAL STONE Filed Aug. 25, 1924 2 Sheets Sheev- 1 17206715507 Jmz'b'ahnfi Jan. 17, 1928.

A. GALANTE APPARATUS FOR MOLDING ARTIFICIAL STONE Filed A g. 25, 1924 2 Sheets-Sheet 2 Patented Jan, 1?, i928.

UNITED stares ANTONIO GALANTE, F MED'EORD, MASSACHUSAETTS.

APPARATUS F03 MOLDING ARTIFZGIAL STONE.

Application fi ed August 25, 3.9534. Serial No. 733,973.

The present invention relates to apparatus adapted for use in molding artificial stone. Molds oi" woos, plaster of Paris, and the like, were formerly-used and are subject to the common fault that the liquid stone must remain in the mold until it is set, thereby causing delay before the mold can be used again. Moreover, wood molds are quickly rendered useless from warping from contact in with the cementitious material.

The object of my invention is to improve upon the prior art, and with this end in View, a feature ofmv invention is the formation of upstanding walls by the use of anymolding material adapted to said formation in connection with the construction of my improved pattern andin using the space between said walls for the reception and hard ening of the cementitious material.

This and such other objects as may hereinafter appear are attained by the devices illustrated in the accompanying drawings showing the preferred form of my invention, in which Fig. 1 is a perspective view of a split bottomless pattern; Fi 2, a partial end elevation of the same; Fig. 3, a detail of the tongue-and-groove sliding engagement between the sections oi the pattern; Fig. i, a longitudinal view showing the pattern 3 in place and the molding material tamped within and withoutthe same; Fig. 5, a longitudinal section showing the pattern withdrawn and the cementitious material poured into the mold formed thereby; Fig. 6, a cross-section showing the pattern withdrawn and the cem'entitious material poured into the mold formed thereby; Fig. 7, a cross-section showing the first section partially removed; Fig. 8, shows a core, 22.

Similar letters and numerals rotor to simi lar parts throughout the several views.

in the drawings, the stop LU shown in Fig. 2; and Fig. 7, adapted to engage the recess shown inlFig. 7, prevents the section 2 from slipping on the section 2".

Fig. 3 shows the dovetailed tongue I; of section 2" engaging the groove g of section 2.

ln Fig. l the tongueand-groove connection s represented by 2".

I am aware that molding materials adapted to form sell-sustaining walls have been known in the art-and have been employed to some extent in the molding oi artificial stone, but my improved apparatus is novel [ill and shows a decided advance over the prior air... in connection with my improved device, any molding material may be employcd, adapted to take a. true impression of the pattern without sticking, when packed closely within and without the same, and to leave selt-sustaining walls when the pattern is removed.

My invention is simple, inexpensive, and

or great commercial value.

in carrying out my invention, the split bottomless pattern is placed on a bed 4 of a mold material adapted to form self-sustain ng wells as shown in Fig. 2, material of the same kind is then rammed compactly to till the interior oitthe pattern up to the line t5(% and is rammed against the outer walls up to the line 1212 as shown in Figs. 2 and l. the surfaces 66 and 12-12 b'eihg leveled by a straight edge or other suitable means.

Sect-ion 2 is first removed by the handle 13. The two sections are so proportioned iii lat the parting plane designated by line y y along which section 2 slides is kept parallel with m x in the plane of the inclined wall cilectin the removal of 2 without scratching or in any way in'ipairing the contour oi the inclined mold walls. If it desired to form holes for straining and drainage purposes, the core 22 may be placed in the position shown in Fig- 4. The section 2 may now be removed by its handle 13, forming a complete mold into which the cementitious material is to be poured. To mold the bottom of the sink-section the core box 26 is used which may be filled with sand concrete or the like, to give it sufficient weight to maintain its positioning, said positioning being effected by cleats 28. Reinforcing rods 38 are embedded in the sink-section to give it strength. In Fig. 3 are shown two sections 2 and 2" engaging each other by a tongue 9 and groove 15 in which Z is dovetailed into g.

It is to be observed that the interior walls of the pattern are cut out so as to leave the space between 6--6 and 12 12 as shown in Fig. l for the further reception of the can entitious material used in molding the bottom of the article produced, said article beingmolded in an inverted position as shown in Figs. 5 and 6.

is to be noted that I do not limit my invention to the precise steps, means, and

objects hereinbefore Set forth, but the same maybe Varied to suit the various forms of molding stoneware Without departing from the spirit and scope of my invention.

I claim:

'1. A split bottomless pattern comprising a section slidably engaging a Second section;

a stop integral with the first section adapted to enga 'e a recess in the second section; neans ior forming holes for straining and drainage purposes; means for successively raising the sections, said sections engaging each other so as to cooperate as a unit While a. molding material capable of forming selfsnstainiir Walls rammed compactly so as to fill the interior of said pattern up to the line 66 and around theexter-ior of the pattern 31p to the line 12512, the interior Walls of the pattern being cut out sons to form the additional molding i=1 ace 6-12 needed for the formation of the bottom of the article produced, the mold formed by the upstandingwalls ofthe molding material when the pattern is Withdrawn with the above addition forming the colnpletemold the reception of the ceinentitions material during the removal of the first section, the parting plane remaining substantially parallel with the oblique side of the pattern so as to leave intact the inclined molding space.

2. A split bottomless pattern comprising a section slid-abl engaging a second section; a etop integralwith the iii-st section adapted to engage a rec-es in the second section; means for sncce. rely raising the sections, said sections engaging each other so an to co-ope ate as a unit While a molding material capahle of forming sell-sustaining walls rammed compactly e0 asfto till the interior of said pattern up to the line 6--6 and around the exterior of tl'ie pattern up to the 1ine 12--12, the interior walls of the pattern being cut out so as to form the additional molding space (L12 needed for the torination of the bottom of the article pro- (lueed, the mold formed by the upstanding walls of the molding material when the n pattern is Withdrawn with the above aiildition forming the complete mold the reception of the cementitious material during the lGillOVill oil the first section, the parting plane remaining substantially parallel with the oblique Slfle of the pattern so as to leave intact the inclined molding space.

In testimony whereof I aflix my signature.

ANTONIO GALAN'IE. 

